ANTERIOR STABILIZED KNEE IMPLANT

摘要

A posterior cruciate ligament retaining knee implant prosthesis comprising a femoral component including a medial condyle and a lateral condyle separated from one another by an intercondylar channel adapted to accommodate throughput of a native cruciate ligament, both the medial condyle and the lateral condyle posteriorly terminate individually, the medial condyle including a medial condyle bearing surface and the lateral condyle including a lateral condyle bearing surface, the femoral component including an anterior cam, and a tibial component including a medial condyle receiver having a medial condyle receiver bearing surface, the tibial component also including a lateral condyle receiver having a lateral condyle receiver bearing surface, the tibial component also including an anterior post.

主权项

1. A total knee implant prosthesis comprising:
a posterior ligament retaining femoral component including a pair of condyles interposed by an opening, the femoral component being free from any posterior cam; and a posterior ligament retaining tibial component, the tibial component including a pair of condyle depressions; wherein: one of the components includes a post having an anterior surface and the other of the components includes an anterior cam having an anterior surface; the anterior cam and post are sized, shaped and positioned so that the anterior cam and the anterior surface of the post are engaged when the knee is fully extended and the anterior cam and the anterior surface of the post are disengaged during at least part of flexion of the knee.